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Finding the Fourth Proportional to 69,491.50, 95,845.80 and 43,657.56

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Solution

The fourth proportional to 69,491.50, 95,845.80 and 43,657.56 is: 60,214.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,491.50 : 95,845.80 = 43,657.56 : x
  2. Step 2: Convert to fraction form
    69,491.50/95,845.80 = 43,657.56/x
  3. Step 3: Cross multiply
    69,491.50x = 95,845.80 × 43,657.56
  4. Step 4: Simplify right side
    69,491.50x = 4,184,393,764.25
  5. Step 5: Solve for x
    x = 4,184,393,764.25/69,491.50
  6. Step 6: Final answer
    x = 60,214.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.